# -*- Mode:Python; indent-tabs-mode:nil; tab-width:4 -*-
#
# Copyright (C) 2016-2017 Canonical Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import os

from unittest import mock
from testtools.matchers import Equals, HasLength

import snapcraft
from snapcraft import tests
from snapcraft.plugins import make


class MakePluginTestCase(tests.TestCase):

    def setUp(self):
        super().setUp()

        class Options:
            makefile = None
            make_parameters = []
            make_install_var = 'DESTDIR'
            disable_parallel = False
            artifacts = []

        self.options = Options()
        self.project_options = snapcraft.ProjectOptions()

    def test_schema(self):
        schema = make.MakePlugin.schema()

        properties = schema['properties']
        self.assertTrue('makefile' in properties,
                        'Expected "makefile" to be included in properties')
        self.assertTrue(
            'make-parameters' in properties,
            'Expected "make-parameters" to be included in properties')

        self.assertTrue(
            'make-install-var' in properties,
            'Expected "make-install-var" to be included in properties')

        makefile = properties['makefile']
        self.assertTrue('type' in makefile,
                        'Expected "type" to be included in "makefile"')

        makefile_type = makefile['type']
        self.assertThat(makefile_type, Equals('string'),
                        'Expected "makefile" "type" to be "string", but it '
                        'was "{}"'.format(makefile_type))

        make_parameters = properties['make-parameters']
        self.assertTrue('type' in make_parameters,
                        'Expected "type" to be included in "make-parameters"')

        make_parameters_type = make_parameters['type']
        self.assertThat(
            make_parameters_type, Equals('array'),
            'Expected "make-parameters" "type" to be "array", but it '
            'was "{}"'.format(make_parameters_type))

        make_install_var = properties['make-install-var']
        self.assertTrue('type' in make_install_var,
                        'Expected "type" to be included in "make-install-var"')

        make_install_var_type = make_install_var['type']
        self.assertThat(
            make_install_var_type, Equals('string'),
            'Expected "make-install-var" "type" to be "string", but it '
            'was "{}"'.format(make_install_var_type))

        make_install_var_default = make_install_var['default']
        self.assertThat(
            make_install_var_default, Equals('DESTDIR'),
            'Expected "make-install-var" "default" to be "DESTDIR", but it '
            'was "{}"'.format(make_install_var_default))

    def test_get_build_properties(self):
        expected_build_properties = ['makefile', 'make-parameters',
                                     'make-install-var', 'artifacts']
        resulting_build_properties = make.MakePlugin.get_build_properties()

        self.assertThat(resulting_build_properties,
                        HasLength(len(expected_build_properties)))

        for property in expected_build_properties:
            self.assertIn(property, resulting_build_properties)

    @mock.patch.object(make.MakePlugin, 'run')
    def test_build(self, run_mock):
        plugin = make.MakePlugin('test-part', self.options,
                                 self.project_options)
        os.makedirs(plugin.sourcedir)

        plugin.build()

        self.assertThat(run_mock.call_count, Equals(2))
        run_mock.assert_has_calls([
            mock.call(['make', '-j2'], env=None),
            mock.call(['make', 'install',
                       'DESTDIR={}'.format(plugin.installdir)], env=None)
        ])

    @mock.patch.object(make.MakePlugin, 'run')
    def test_build_disable_parallel(self, run_mock):
        self.options.disable_parallel = True
        plugin = make.MakePlugin('test-part', self.options,
                                 self.project_options)
        os.makedirs(plugin.sourcedir)

        plugin.build()

        self.assertThat(run_mock.call_count, Equals(2))
        run_mock.assert_has_calls([
            mock.call(['make', '-j1'], env=None),
            mock.call(['make', 'install',
                       'DESTDIR={}'.format(plugin.installdir)], env=None)
        ])

    @mock.patch.object(make.MakePlugin, 'run')
    def test_build_makefile(self, run_mock):
        self.options.makefile = 'makefile.linux'
        plugin = make.MakePlugin('test-part', self.options,
                                 self.project_options)
        os.makedirs(plugin.sourcedir)

        plugin.build()

        self.assertThat(run_mock.call_count, Equals(2))
        run_mock.assert_has_calls([
            mock.call(['make', '-f', 'makefile.linux', '-j2'], env=None),
            mock.call(['make', '-f', 'makefile.linux', 'install',
                       'DESTDIR={}'.format(plugin.installdir)], env=None)
        ])

    @mock.patch.object(make.MakePlugin, 'run')
    def test_build_install_var(self, run_mock):
        self.options.make_install_var = 'PREFIX'
        plugin = make.MakePlugin('test-part', self.options,
                                 self.project_options)
        os.makedirs(plugin.sourcedir)

        plugin.build()

        self.assertThat(run_mock.call_count, Equals(2))
        run_mock.assert_has_calls([
            mock.call(['make', '-j2'], env=None),
            mock.call(['make', 'install',
                       'PREFIX={}'.format(plugin.installdir)], env=None)
        ])

    @mock.patch.object(make.MakePlugin, 'run')
    def test_build_empty_install_var(self, run_mock):
        self.options.make_install_var = ''
        plugin = make.MakePlugin('test-part', self.options,
                                 self.project_options)
        os.makedirs(plugin.sourcedir)

        plugin.build()

        self.assertThat(run_mock.call_count, Equals(2))
        run_mock.assert_has_calls([
            mock.call(['make', '-j2'], env=None),
            mock.call(['make', 'install'], env=None)
        ])

    @mock.patch.object(make.MakePlugin, 'run')
    @mock.patch('snapcraft.file_utils.link_or_copy_tree')
    @mock.patch('snapcraft.file_utils.link_or_copy')
    def test_build_artifacts(self, link_or_copy_mock,
                             link_or_copy_tree_mock, run_mock):
        self.options.artifacts = ['dir_artifact', 'file_artifact']
        plugin = make.MakePlugin('test-part', self.options,
                                 self.project_options)

        os.makedirs(os.path.join(plugin.builddir, 'dir_artifact'))

        plugin.build()

        self.assertThat(run_mock.call_count, Equals(1))
        run_mock.assert_has_calls([
            mock.call(['make', '-j2'], env=None),
        ])
        self.assertThat(link_or_copy_mock.call_count, Equals(1))
        link_or_copy_mock.assert_has_calls([
            mock.call(
                os.path.join(plugin.builddir, 'file_artifact'),
                os.path.join(plugin.installdir, 'file_artifact'),
            )])
        self.assertThat(link_or_copy_tree_mock.call_count, Equals(1))
        link_or_copy_tree_mock.assert_has_calls([
            mock.call(
                os.path.join(plugin.builddir, 'dir_artifact'),
                os.path.join(plugin.installdir, 'dir_artifact'),
            )])

    @mock.patch.object(make.MakePlugin, 'run')
    def test_make_with_env(self, run_mock):
        plugin = make.MakePlugin('test-part', self.options,
                                 self.project_options)
        os.makedirs(plugin.sourcedir)

        env = {'foo': 'bar'}
        plugin.make(env=env)

        self.assertThat(run_mock.call_count, Equals(2))
        run_mock.assert_has_calls([
            mock.call(['make', '-j2'], env=env),
            mock.call(['make', 'install',
                       'DESTDIR={}'.format(plugin.installdir)], env=env)
        ])
